| Size | 4 |
| Series | MS |
| Actuator lock | Rotary knob with detent; can be closed with accessories |
| Mounting position | Any |
| Design | Directly actuated diaphragm regulator |
| Controller function | Output pressure constant; With secondary exhausting; With return flow function |
| Symbol | 00991558 |
| Pressure gauge (ANALOG) or Pressure display (DIGITAL) | With pressure gauge |
| Operating pressure | 0.08 ... 1.4 MPa (0.8 ... 14 bar) |
| Pressure regulation range | 0.3 ... 4 bar |
| Max. pressure hysteresis | 0.025 MPa (0.25 bar) (3.625 psi) |
| Standard nominal flow rate (standardised to DIN 1343) | 2100 l/min |
| Operating medium | Compressed air to ISO 8573-1:2010 [7:4:4]; Inert gas |
| Note on operating and pilot medium | Lubricated operation possible (in which case lubricated operation will always be required) |
| LABS (PWIS) conformity | VDMA24364-B1/B2-L |
| Storage temperature | -10 ... 60 °C |
| Suitable for use with food | See supplementary material information |
| Media temperature | -10 ... 60 °C |
| Ambient temperature | -10 ... 60 °C |
| Product weight | 225 g |
| Type of mounting | With accessories |
| Pneumatic connection, port 1 | G1/4 |
| Pneumatic connection, port 2 | G1/4 |
| Material sub-base | Die-cast aluminium |
| Material control panel | PA; POM |
| Material seals | NBR |
| Material housing | Die-cast aluminium |
| Material membrane | NBR |
| EAN / GTIN | 4052568085049 |
| Festo type code | MS4-LR-1/4-D5-AS |
| Festo order number | 529415 |
| Product type | Air treatment |
| Product group | Pneumatics |
| Thread | 1/4" |
| Temperature min | -10 °C |
| Temperature max | 60 °C |
| Carbon footprint (EPD) | 1.5921 kg CO2e per pcs |
| Country of origin | Hungary |
| Customs tariff code (EU CN) | 84811099 |
| HS code | 8481.10 |
| Manufacturer part number | 529415 |
